Brother MFC-7365DN Service Manual

Confidential
CHAPTER 2 ERROR INDICATION AND TROUBLESHOOTING
This chapter details error messages and codes which the incorporated self-diagnostic
function of the machine will display if any error or malfunction occurs. If any error message
appears, refer to this chapter to find which parts should be checked or replaced.
The latter half of this chapter provides sample problems which could occur in the main
sections of the machine and related troubleshooting procedures.
CONTENTS
1. INTRODUCTION ........................................................................................................... 2-1
1.1 Precautions............................................................................................................ 2-1
1.2 Initial Check ...........................................................................................................2-2
2. OVERVIEW ................................................................................................................... 2-4
2.1 Cross-section Drawing ..........................................................................................2-4
2.2 Paper Feeding ....................................................................................................... 2-6
2.3 Operation of each part...........................................................................................2-8
2.4 Block Diagram .......................................................................................................2-9
2.5 Components ........................................................................................................2-10
2.6 Life of Toner Cartridge and Drum Unit................................................................. 2-11
3. ERROR CODES .......................................................................................................... 2-15
3.1 Error Codes .........................................................................................................2-15
3.2 Error Messages ...................................................................................................2-20
3.3 Communications Error Code ............................................................................... 2-22
3.4 Error Cause and Remedy....................................................................................2-25
3.5 Paper Feeding Problems..................................................................................... 2-71
3.5.1 Pickup function of Paper tray does not work. ...........................................2-71
3.5.2 No feeding ................................................................................................ 2-71
3.5.3 No paper fed manual feed slot (Error code 9A)........................................2-72
3.5.4 Double feeding .........................................................................................2-72
3.5.5 Paper jam ................................................................................................. 2-73
3.5.6 Dirt on paper.............................................................................................2-75
3.5.7 Paper feeding at an angle ........................................................................ 2-75
3.5.8 Wrinkles or creases.................................................................................. 2-76
3.5.9 Curl in the paper....................................................................................... 2-77
3.5.10 Prints only single side of the paper when duplex-printing ........................2-78
3.5.11 Cannot make print through duplex-printing .............................................. 2-78
3.5.12 Paper size error........................................................................................2-78
3.5.13 Paper size error through duplex-printing ..................................................2-78
3.6 Image Defect Troubleshooting ............................................................................2-79
3.6.1 Image defect examples ............................................................................2-79
3.6.2 Troubleshooting image defect .................................................................. 2-80

Brother MFC-7365DN Specifications

Printing Specifications

print technology	Electrophotographic Laser
print speed	Up to 24ppm
print resolution	Up to 1200 x 600 dpi

Copying Specifications

copy speed	Up to 24cpm
copy resolution	600 x 600 dpi
copy reduction/enlargement	25% - 400% in 1% increments

Scanning Specifications

scanner type	Color Flatbed with ADF
document glass size	8.5” x 11” (letter)
scan resolution	Optical: Up to 600 x 2400 dpi

Paper Handling

paper size maximum	Up to 8.5” x 14” (legal size)
paper input capacity maximum	250-sheet capacity paper tray, single-sheet manual feed slot
output capacity maximum	100 sheets (face down), 1 sheet (face up)

Weight and Dimensions

unit dimensions	15.9” W x 15.7” D x 12.4” H
unit weight	25.6 lbs.
carton weight	32.6 lbs.
carton dimensions	20.7” W x 20.1” D x 19.4” H